Zeta MKII-HF Installation guide

Zeta
Brand
Zeta
Model
MKII-HF
Category
Smoke detectors
Type
Installation guide

This manual is also suitable for

Zeta MKII-HF is a conventional heat detector designed to detect rapid temperature increases or fixed high temperatures, making it ideal for protecting areas with high ceilings or large open spaces. It features:

  • A2S heat sensor: Responds to rapid temperature increases or fixed high temperatures, providing reliable detection in various environments.
  • Wide operating voltage range: Compatible with 10.5V to 33V, allowing for flexible installation options.
  • Low quiescent current: Consumes minimal power during normal operation, reducing overall system power consumption.
  • Sensitivity testing: Supports testing with a Sensitivity Test Wand to ensure optimal performance and adjust sensitivity if needed.

Zeta MKII-HF is a conventional heat detector designed to detect rapid temperature increases or fixed high temperatures, making it ideal for protecting areas with high ceilings or large open spaces. It features:

  • A2S heat sensor: Responds to rapid temperature increases or fixed high temperatures, providing reliable detection in various environments.
  • Wide operating voltage range: Compatible with 10.5V to 33V, allowing for flexible installation options.
  • Low quiescent current: Consumes minimal power during normal operation, reducing overall system power consumption.
  • Sensitivity testing: Supports testing with a Sensitivity Test Wand to ensure optimal performance and adjust sensitivity if needed.
MKII-xx Installation Guide
32-0067-r03 1 / 2 17/10/2017
Zeta Alarms Limited, 72/78 Morfa Road, Swansea, SA1 2EN
Wiring Diagram
Note: Polarity must be observed on detector as indicated on schematic wiring diagram.
Earth terminal is provided to maintain earth screen continuity. It does not connect to this detector head.
Base Installation
Connect the zone wires to the appropriate terminal. Tighten with a correct sized screwdriver: a wrong screwdriver
may damage the screw heads.
Make sure that the base contacts are clean and unobstructed.
Note, the base model No. for MKII Series is MKII-CB or MKII-CB/D
Detector Head Installation
If there is still minor construction work in progress, the head may be fitted, provided that the dust cover is still in
place.
To fit the detector, mate the detector onto the base and rotate the detector in a clockwise direction until the
detector loads into the base. Continue to twist clockwise to secure it.
Model
There are 5 models of Fyreye II Conventional Detector.
Monitor state
In monitor state, the two red LEDs on the top cover will blink every 5 seconds.
See Fig-1.
Pre-alarm state
In pre-alarm state, LED pairs will blink a clockwise circle in every 5 seconds.
Fire alarm state
In fire alarm state, the two LEDs shown in Fig-1 will light. The other 3-pairs of LED will light for 0.5 seconds
rotating clockwise.
False alarms
In case of false alarm, the LED pairs will blink alternately. Check if the air around the detector is
clear. Fan the air around the smoke alarm if necessary, until the alarm turns off. If the false alarm
occurs frequently or continuously, arrange to have the unit serviced.
Sensitivity Read
Take the Sensitivity Test Wand making the receive diode against the light-emitting diode (see Fig-2).
And push the button of the Sensitivity Test Wand, the sensitivity will be displayed on LCD of Wand for a few
moments later.
Drift Compensation Limit
In the case of the smoke chamber reaching the end of it`s compensation limit, the detector will flash it`s LEDs
continuously to signal that the detector should be replaced. This can be confirmed with the Sensitivity Test Wand.
Part No
Model No.
Description
CPR No.
LPCB No
80-200
MKII-OP
Conventional optical detector
0832-CPR-F0067
330n/01
80-202
MKII-HR
Conventional A2R heat detector
0832-CPR-F0071
330q/02
80-204
MKII-HF
Conventional A2S heat detector
0832-CPR-F0073
330q/01
80-206
MKII-OH
Conventional optical and heat detector
0832-CPR-F0069
330p/01
80-208
MKII-HF/CS90
Conventional CS heat detector
0832‐CPR‐F1922
330q/06
Fig-1
Fig-2
MKII-xx Installation Guide
32-0067-r03 2 / 2 17/10/2017
Zeta Alarms Limited, 72/78 Morfa Road, Swansea, SA1 2EN
SPECIFICATION
EN54-5/7 approval
Supply Voltage: 10.5~33V
Alarm Current: 35-45mA at 24 volts
Quiescent Current: 70uA Maximum
Smoke Sensitivity: 0.08 dB/m - 0.12 dB/m
Temperature class: A2R (for MKII-HR); A2S (for MKII-HF) , CS (for MKII-HF/CS90)
Humidity Range: 0% to 95% Relative Humidity, non condensing
Maintenance Information
Fyreye Mk II detectors are generally installed as part of a fire alarm system.
Servicing of the system should be carried out in accordance with the requirements of the local code of practice for
fire alarm installations, eg. BS 5839 Part 1, Fire Detection and Alarm Systems for Buildings: Code of Practice for
System Design, Installation and Servicing.
The frequency of inspection testing will be based on a risk assessment of the installation, but should be no more
than 6 months between visits.
Over a 12 month period every detector should be functionally tested, using suitable equipment to generate smoke
or heat (EG the Solo range from No Climb Products)
All Fyreye Mk II conventional smoke detectors have an IR transmitter that periodically transmits chamber data.
This allows the detectors sensor status to be checked with a Sensitivity Test Wand.
Cleaning
Cleaning a smoke detector can prolong its working life. The detector can be cleaned with:-
A hand held vacuum cleaner
A clean air line or a “duster” aerosol
A lint free cloth.
The effectiveness of cleaning will depend on the operating environment of the detector. Depending on timescales
& financial considerations, detector cleaning may not be a practical option.
When to replace a detector
A detector should be considered as needing to be replaced if:-
The detector does not respond to a functional test
If the detector has had an unexplained activation*
If the detector has been in service for more than 10 years**
* In some cases it may be sensible to leave a detector until a second unexplained activation, but consider the extra
service costs and perceived system integrity if this is done.
** Many detectors will continue to function adequately way beyond 10 years service. Balance the frequency of
unwanted alarms, with the cost of replacing detectors when making this decision.
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Zeta MKII-HF Installation guide

Zeta
Brand
Zeta
Model
MKII-HF
Category
Smoke detectors
Type
Installation guide
This manual is also suitable for

Zeta MKII-HF is a conventional heat detector designed to detect rapid temperature increases or fixed high temperatures, making it ideal for protecting areas with high ceilings or large open spaces. It features:

  • A2S heat sensor: Responds to rapid temperature increases or fixed high temperatures, providing reliable detection in various environments.
  • Wide operating voltage range: Compatible with 10.5V to 33V, allowing for flexible installation options.
  • Low quiescent current: Consumes minimal power during normal operation, reducing overall system power consumption.
  • Sensitivity testing: Supports testing with a Sensitivity Test Wand to ensure optimal performance and adjust sensitivity if needed.
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